Dr.Radhika Krishnan

Dr. S.NATARAJAN

Abstract

To compare data from photorefraction (smartphone app) with cycloplegic refraction to determine sensitivity and specificity of the app and to evaluate the economics of photoscreening in the community. The study was conducted between July 2017 and March 2018, any person aged 12 months to 26.5 years was included. Each study subject was photographed using Go Check Kids (GCK app). Following this screening, all subjects underwent a vision screening.Those with a vision below 6/9 on the Snellen’s chart, underwent a cycloplegic refraction. The images obtained using the GCK were immediately graded by the app software.The sensitivity and specificity of the GCK was 62% and 97%, respectively, when grading was automated in identifying the risk factors. The positive and negative predictive value were 0.64 and 0.97 respectively. The GCK mobile application is an effective, simple, quick, and affordable method to detect refractive errors in children.